#include<bits/stdc++.h>
using namespace std;
int main()
{
	char a[1000],b[1000],i,j=0;
	scanf("%s",&a);
	for(i=0;i<=strlen(a);i++)
	if(a[i]=='a'||a[i]=='e'||a[i]=='i'||a[i]=='o'||a[i]=='u')
	b[j]=a[i],j++;
	for(i=0;i<=strlen(b);i++)
	if(b[i]=='a'||b[i]=='e'||b[i]=='i'||b[i]=='o'||b[i]=='u') cout<<b[i];
    return 0;
}
